The answer to the question is sound
The period of the pendulum is 6 seconds.
<h3>What is period?</h3>
Period is the time taken for a simple pendulum to move to(forward) and fro(backward). The s.i unit of period is seconds(s).
Note: When a simple pendulum moves to and fro. it completes one cycle.
From the question, The period of the pendulum is calculated using the formula below.
<h3>Formula</h3>
- T = a+b.............. Equation 1
Where:
- T = Period of the pendulum
- a = Time taken for the pendulum to move forward
- b = Time taken for the pendulum to move backward.
From the question,
Given:
Substitute the values above into equation 1
Hence, The period of the pendulum is 6 seconds.
Learn more about period here: brainly.com/question/21924087
Answer:
solving for: velocity
equation: velocity = distance / time
substitution: velocity = 1425 km / 12.5 hrs
answer: 114 km/hr
This is amazing. When you read the quest ion, you wouldn't think there's enough information there to find an answer. But there is !
-- When the block is sliding along the flat surface, its kinetic energy is (1/2)(Mass·v²).
-- When it's 2.5m up the ramp and stops, its potential energy is (2.5m)·(Mass·g).
-- If there's no friction anywhere, these energies are equal.
(1/2)(Mass·v²) = (2.5m)·(Mass·g)
(v²/2) = (2.5m) · g
v² = 5m · g
v² = 49 m²/s²
<em>v = 7 m/s </em>(B)
